George alleit lane



G. h- LANE.

INNER TUBE. APPLICATION FILED AUG-31.1918.

1,310,121. Patented J111y15, 1919.

GEORGE ALLEN LANE, OF PERRIS, CALIFORNIA.

.. INNEE TUBE.

To all whom it may concern Be it known that I, GEORGE ALLEN LANE, a citizen of the United States, residing at Pei'ris, in the county of Riverside and State of California, have invented certain new and useful Improvements in Inner Tubes, of

which the following is aspecification, reference being had to the accompanying drawings. a

This invention relates to certain improvements in inner tubes for pneumatic tires and it is an object of the invention to provide a novel and improved inner tube which is nonelastic and which effectually serves to reduce to a minimum; the out.

The invention consists in the details of construction and in the combination and arrangement of the several parts of my improved inner tube wherein certain important advantages are attained and the device rendered simpler, less expensive and otherwise more convenlent and advantageous for use,

as will be herein-after more fully set forth.

The novel features of my inventionwill hereinafter be definitely claimed.

In order that m better understood I will now proceed to describe the same with reference to the accompanying drawings, wherein:

Figure 1 is a fragmentary view in elevation of an inner tube formed in accordance with an embodiment of my invention, the

outer lamination being partly wrapped; and 'Fig. 2 is a transverse'sectio-nal viewtaken through the inner lamination of my improved tube with the coating applied thereto.

As disclosed in the accompanying drawings, my improved inner tube comprises an inner lamination of canvas, and said lamination 1 is sewed or otherwise held into the form. of a continuous hollow'tube. The inner face of the'lamination lhas applied thereto a coating 2 of rubber paint or the like which is applied thereto before the tube is formed and which serves to render the lamination airtight. A second strip or lamination 3 of canvas having its inner face provided with a coating of raw rubber is then wrapped around the tube formed by the lamination 1. It is preferred that the strip or lamination 3 be about three inches Wide andof a length to permit-about two inches of adjacent coils or convolutions to overlie I Specification of Letters Patent.

Application filed August 31. 1918. Serial No. 252.210.

possibility of a blowinvention may be the out my invention in Patented July 15, 1919.

or overlap and to continue the wrapping of the strip or lamination 3 until the same is of three thicknesses. 7 After the lamination 3 has been applied, the structure is placed in a suitable mold and suitably vulcanized.

The inflating valve V may be applied in any manner which best meets the requirements of practice.

It is preferred that the lamination 1 initially comprisea rectangular sheet of can vas of proper length and width and that the same be rolled transversely and to permit the desired connection by stitching or otherwise of the longitudinal marginal portions or the laminations 1 and after which the end marginal portions or the rolled lamination are suitably secured by stitching or the like. After the longitudinal marginal portions and the end marginal portions have been suitably secured the same have applied thereto a. coating of liquid rubber or its equivalent to assure an airtight structure.

From the foregoing description it will be obviousthat inner tube constructed in accordance with my invention is particularly well adapted for use by reason of the convenience and facility with which it may be assembled and operated and it will also be obvious that my invention is susceptible of some change and modification Without materially departing from the principles and spirit thereof andfor this reason I do not wish to be understood as limiting myself to the precise arrangement and formation of the several parts herein shown in carrying practice except as hereinafter claimed.

' I claim:

As a new article of manufacture, an inner tube-comprising an inner lamination of textile fabric, a coating carried by the inner face of said fabric to make the same im.- pervious to" air, a textile strip wrapped around said inner lamination, and a coating carried by the inner face of said strip to render the same impervious to air.

In testimony whereof I hereunto affix my Witnesses:

A. WoLooTT, M. M. ROBERTS. 

